Quote:
But why does the Freescale
LITE5200B board have 2 slots (and 256 MB RAM)?
They use a clever trick to get two PCI slots to work which isn't really suitable for a consumer board. A lot of cards actually won't run reliably in it.
That's irrelevant how they did it to put two PCI slots on the board though; it's not the same as a PCI riser. A PCI riser will extend one slot (with one set of INT lines) into two or three (still with one set of INT lines), it does not carry any of the extra interrupt signals required to drive the second or third card properly.
The only reliable way to support multiple PCI bus masters on the 5200B - and especially on Efika using a riser - is with a PCI bridge chip.
It has 256MB RAM because they put 256MB RAM on it.
acrux, I am not sure your PCI card would work, if only because I don't know if it is 3.3V capable. Bridged cards are much harder to find in 3.3V IO.
http://www.premiercomputer.de/productip ... ber=750303
64-bit PCI, like AGP, is required to operate at 3.3V (as are 66MHz PCI cards). This riser will guarantee to work if it has a true PCI bridge on it, but it will extend the board lengthways, and the slots will point AWAY from the Efika board.